Base | Representation |
---|---|
bin | 11101001011011010… |
… | …100000001110101110 |
3 | 2222212102221102010212 |
4 | 131023122200032232 |
5 | 1003130440310110 |
6 | 22220502502422 |
7 | 2156246456054 |
oct | 351332401656 |
9 | 88772842125 |
10 | 31330010030 |
11 | 12317a79280 |
12 | 60a4434a12 |
13 | 2c53aa9797 |
14 | 1732d3c1d4 |
15 | c35795e05 |
hex | 74b6a03ae |
31330010030 has 32 divisors (see below), whose sum is σ = 62438981760. Its totient is φ = 11222687520.
The previous prime is 31330010029. The next prime is 31330010069. The reversal of 31330010030 is 3001003313.
It is a junction number, because it is equal to n+sod(n) for n = 31330009987 and 31330010014.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2118140 + ... + 2132879.
It is an arithmetic number, because the mean of its divisors is an integer number (1951218180).
Almost surely, 231330010030 is an apocalyptic number.
31330010030 is a deficient number, since it is larger than the sum of its proper divisors (31108971730).
31330010030 is a wasteful number, since it uses less digits than its factorization.
31330010030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4251104.
The product of its (nonzero) digits is 81, while the sum is 14.
Adding to 31330010030 its reverse (3001003313), we get a palindrome (34331013343).
The spelling of 31330010030 in words is "thirty-one billion, three hundred thirty million, ten thousand, thirty".
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